The only thing I want to add... You are fighting 2 battles, one against the plants, one against the seeds.

You must never let it seed, or your eradication will be delayed by years.

You should fight a pitched battle against a small area , maybe 20m by 10m for a year or 2, then advance.

For the plants in my area, the main problem is that are dormant while I am fighting weeds in the spring, then pop up when I am resting on my mid summer laurels.

I have heard rumors of putting the plant in a cup of glucophosphosphate, seems dangerous to me, but who knows.

The only thing I want to add... You are fighting 2 battles, one against the plants, one against the seeds.

You must never let it seed, or your eradication will be delayed by years.

You should fight a pitched battle against a small area , maybe 20m by 10m for a year or 2, then advance.

For the plants in my area, the main problem is that are dormant while I am fighting weeds in the spring, then pop up when I am resting on my mid summer laurels.

I have heard rumors of putting the plant in a cup of glyphosate, seems dangerous to me, but who knows.